Sensor Data Processing for Automated Driving Map Creation
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Solution Overview
Problem
Current methods for creating detailed, accurate, and complete digital maps for automated driving vehicles are costly and impractical due to the high bandwidth requirements for transmitting raw sensor data from vehicles to the cloud, limiting the amount of environmental data that can be transmitted and processed.
Innovation Solution
A method that reduces raw environmental data transmission by implementing data limitation strategies such as selective data transmission, prioritizing sensor detection in defined directions, and recording data in a spatially and temporally defined manner, allowing for the creation of optimized digital maps using normal series vehicles with reduced bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If raw sensor data is transmitted from vehicles to the cloud, then complete and accurate environmental data can be obtained, but the bandwidth requirements become prohibitively high
Solution Approach 1:
The patent extracts only the essential and relevant environmental features from the complete sensor data set. Instead of transmitting all raw sensor data, the system identifies and transmits only the critical information needed for map creation and vehicle safety, significantly reducing data volume while maintaining functional completeness.
Solution Approach 2:
The patent segments environmental data into different categories and priority levels. Data is divided into essential features (must-transmit) and non-essential features (optional), allowing selective transmission based on bandwidth availability and map creation requirements.
2Measurement precision
If detailed environmental data is captured and transmitted, then map accuracy is improved, but transmission bandwidth requirements increase significantly
Solution Approach 1:
The patent applies different data transmission qualities to different spatial regions and environmental features. Critical areas and features receive higher precision data transmission, while less critical regions use lower precision data, optimizing the balance between map accuracy and bandwidth consumption.
3Loss of information
If comprehensive sensor data is transmitted for complete environmental mapping, then digital map completeness is improved, but transmission costs and infrastructure requirements increase
Solution Approach 1:
The patent implements partial data transmission by selecting only the necessary portion of sensor data for transmission. The system transmits sufficient data to achieve functional completeness for map creation and vehicle operations, without transmitting excessive redundant information that would increase infrastructure requirements.
Data Source
Figure 1~2
AI summary
The invention relates to a method for processing sensor data, comprising the steps of: providing environment data (SD) of a vehicle; assigning the environment data (SD) to corresponding locating data (OD); and transmitting the locationally assigned environment data (SD') to a processing device (200), wherein the transmission of the environment data (SD) between a sensor apparatus (10) and a control apparatus (30) and/or the transmission of the locationally assigned environment data (SD') between the control apparatus (30) and the processing device (200) is carried out in accordance with a defined data limit criterion.